Cutting-machine for embroidery.



Patented Sept. 14, 1915.

4 -SHEETS-SHEET I.

K. KELLER.

CUTTING MACHINE FOR EMBROIDERY.

APPLICATION FILED FEB. 17, I915.

COLUMBIA'PLANDGRAPH co., WASHINGTON. D. c.

K. KELLER.

CUTTHNG MACHINE FOR EMBROIDERY.

APPLICATION FILED FEB. 17. I915.

Patented Sept. 14, 1915.

4 SHEETS-SHEET 2.

has-

COLUMBIA PLANOGRAPH C0., WASHINGTON. D. c.

K. KELLER.

CUTTING MACHINE FOR EMBROIDERY.

APPLICATION FILED FEB. 17. 1915.

l 1 53,498. v Patented Sept. 14, 1915.

4 SHEETS-SHEET 3. F155 V II/ll 2 9,41% www COLUMBlA PLANOGRAPH JO-,WASHINGTON. D. c.

K. KELLER.

CUTTING MACHINE FOR EMBROIDERY.

. Ij..5 I F 6% APPLICATION FILED FEB. I1. I915.

Patents d Sept. 14., 1915.

4 SHEET$SHEET 4.

Ar TOR msY COLUMBIA PLANOGRAPH 60., WASHINGTON, D. c.

KARL KELLER, OF ABBON, SWTTZEBLAND.

CUTTING-MACHINE FOR EMBROIDERY.

Specification of Letters Patent.

Patented, Sept. 14, 915.

Application filed February 17, 1915. 'Seria1No..8,91 3.

To all whom it may concern Be it known that I, KARL KELLER, a citizen of the Swiss Republic, and resident of Arbon, Switzerland, have invented new and useful Improvements in Cutting-Machines for Embroidery, of which the following is a full, clear, and exact specification.

The present invention relates to certain improvements in cutting-machines for embroidery, that is to an improved machine for cutting the non-embroidered portion from fabrics having longitudinal embroidery thereon, said improvements being particularly described in the following specification with reference to the accompanying drawings in which:

Figure 1 is a vertical transverse section through the middle part of the improved machine taken on the line i i-13 of 5 and seen in the direction of the arrow 0; Fig. 2 is a corresponding partial plan view with a part represented in horizontal section; Fig. 8 is a side elevation of the machine, seen in the direction of the arrow d (Fig. 5) Fig. 4 is partly a plan view, partly a horizontal section corresponding to Fig. 3 and shows the drive mechanism of the machine; Fig. 5 is a vertical longitudinal section of the machine taken along the line EF of Fig. 1.; Figs. 6, 7 and 8 show cer tain protecting attachments of the machine on a larger scale; 9 is a side elevation on a larger scale of the cutting mechanism of the machine; 10 is a corresponding transverse section on the line GH of 9, seen in the direction of the arrow a; Fig. 11 represents on a larger scale a detail part of Fig. 9 in transverse sectiontaken on the line K L of Fig.9.

In Figs. 1 3 and 5 of the drawings, 1 indicates the main frame ofthe improved machine having two lateral members rigidly connected together. This frame supports the main driving shaft 2 rotatably mounted in bearings 3, 3 (Fig. and actuated by a suitable drive mechanism so as to rotate in the direction of the arrow m (Fig. 1). The main shaft 2 carries a number of large wheels or disks 4i, 4, 4E fixed thereon between the frame members and designed to feed or convey the embroidered fabric to be cut. On their periphery the wheels 4, i, 4 are provided w th a corrugated or rough surface, preferably formed of emery cloth attached thereon or simply of emery stuck thereon, in order to increase the adherence of the fabric to be conveyed by said wheels. On the machine frame is fixed the forked support 5, the upper arm of which is, sitir ated above the conveyor wheels 4, a, while its lower arm passes between said wheels. The support 5 carries two curved levers 6., 6 pivoted upon the stationary axis 7. Each of theselevers is provided at its ends with the rotary rollers 8, 9 or 8, 9, over Which pass the endless belts 10 and 11. These belts have a part of their lower section directly overlying the peripheries of the conveyer wheels 4, 4t and are designed to firmly press the fabric down on said wheels in order to insure the frictional feed movement of the fabric under the action of the rotating conveyor wheels. i

The front pressure rollers 8, 8 have an eccentric pivotal connection with the levers 6, 6 (Fig. 2) so as to be angular-1y adjustable on said levers in such a manner that it is possible to vary the center distance between the rollers 8, 9 and 8, 9, which allows of tensioning more or less the pressure belts 10 and 11. By a screw device, the roller pivots can be fixed in their adjusted position. The lever 6 is provided at its front end with a handle 12, by means of which it can be turned upward so as to remove the belt 10 from the conveying wheel 4 in order to facilitate the introduction of the embroidered fabric. ()n the other hand, the rear lever 6 carries a rod 13 with an adjustable weight 14 which allows of the regulation of the frictional pressure of the pressure belt 11 on the wheel 4. V

The machine frame 1 carries in its upper part a table 15 which serves as a support for the embroidery fabric 16 and has corre sponding openings for the passage of the conveyor wheels 4, 4, 41'. It comprises a curved middle part, the curvature of which corresponds to the peripheric surface of-said wheels. and two fiat end parts somewhat inclined downward to the horizontal line. This table is preferably made of sheet metal, but may also consist of wood.,- The embroidery fabric 16 is drawn in over the table 15.betw-een the upper peripheric part of the conveyor wheels and the t nsioned pressure belts 10, Hand by the pressure ofthese belts, which adjust themselves to the periphery of the wheels without guidinp; shoes, it is securely seized by the revolvmg conveyor wheels and conveyed toward the cuttlng mechanism. This mechanism 1 The pulley 19 is rigidly connected with a step pulley 20 connected in its turn by a belt with a greater step pulley 21. The latter is rotatably mounted on the fixed shaft 22 and carries inside an expansion clutch 23 of known construction, by means of which it can be coupled with the small toothed pinion 24 supported on the same shaft 22. To this end, the lengthened nave of the toothed pinion 24 carries a longitu-. dinally movable coupling expander sleeve 25 arranged to be shifted in the one or the opposite direction by means of a forked lever 26 engaging by rollers with a groove of said sleeve. The pinion 24 meshes permanently with the great toothed wheel 27 fastened on the main shaft 2.

The throwing-into or -out ofaction of the drive mechanism for the main shaft 2 is effected by means of a foot controlled lever 28 shown in Fig. 5, fixed on the shaft 29 supported in the machine frame. The lever 28 carries at its outer end a board like pedal 30extending over the whole breadth of the machine so that the operation of the drive coupling device can be effected from different points of the machine. On the-shaft 29 is keyed the arm 31' connected by a link rod 32 to theforked lever 26. A spring 33 maintains the forked coupling lever 26 in its normal position of engagement, in which the coupling 23 is closed for the operation of the machine.

In order to rapidly stop the rotating con vever wheels, the forked lever 26 carries a lateral braking shoe 34 which can be brought into contact with a braking rim on the toothed wheel 27 when the coupling 23 is disengaged by means of the pedal 30. At one side of the machine, the main shaft 2 carries hand wheel 35 by means of which it is possible to also operate the machine by hand when the mechanical drive is thrown out of action.

As already stated above, the cutting tool of the cutting mechanism consists of an endless cutting band 36 passing over the two guide rollers 37, 38 (Figs. 9, 10 and 11). These rollers are rotatably mounted on the upper longer arm of a forked tool carrier 39. The flexible cutting band 36 is fixed with one of its ends to the guide roller 37 and with: its other end to the roller 38 and in the cutting operation it is successively unwound from the first roller and wound upon the'roller 38. Between the two guide rollers the cutting band 36 passes at the cutting place with its lower face over an arc-like curved guide-rail 40 bent upward and vertically and adjustably guided by means of aguide-way on the tool carrier 39. The arc-like curved form of this guiderail corresponds substantially to the periphery of the conveyer wheels 4, 4, so that the cutting edge of the band 36 passes at the cutting place substantially along the same line in which the fabric is drawn by the conveying device through the cutting mechanism. At the inlet and outletside of the cutting place the guide-rail 40 is provided with curved guide pieces 41, 41 along which the cutting band 36 is guided upward so as to be maintained apart from the curved fabric path n-o where it is out of the cutting place.

The lower arm of the tool carrier 39 supports, opposite to the operative edge of the cutting band, the counter-part 42, rotatably mounted thereon and forming with said cut ting edge a parallel narrow slot through which the fabric is drawn during the cutting operation (see also Fig. 10). The width of said slot-is adjustable in such. a manner as to allow only the non-embroideredfabric to pass, while the embroidered portions are cut 44 fixed on the shaft 43, extending upward over the fabric path n0 and carrying at its free end an adjusting screw 45 provided with a hand wheel. The tool carrier 39 possesses at its rear end an upward directed arm 46 serving as a stop for the adjusting screw 45. Between the arm 46 and the arm 44 is arranged a traction spring 47 which tends to continuously press the adjusting screw 45 against the stop arm 46. The arrangement of this precise adjusting device for the counterpart 42 far above the fabric path n0 has the advantage that the regulating members 44, 45, 46 cannot be soiled or otherwise affected by the dust resulting from the cutting operation.

ulating devices below the fabric path.

Advantageously the cutter 36 occupies at the cutting place an obliquely downward directed position as indicated in Fig; 10.

The guide rollers 37 38 receive then also an i 7 Moreover, owing to the posit on of the ad usting screw inclined position parallel to the cutter face or they can also, asrepresented, be arranged vertically. with their axis directed horizontally. In this case, however, the guide pieces 41, 41 receive a helical form in order that the face of the cutting band 36 may successively pass from the oblique position to the horizontal position. This vertical position of the cutting band guide rollers offers the advantage that the fabric conveying members arranged on both sides near the cutting place, that is the conveying wheels 4, 4L and the pressure belts 10, 11 can be placed as closely as possible to the cutting mechanism, so as to allow of the cutting of narrow embroidered bands.

The cutting mechanism has in the known manner, as seen in plan view, an obliquely directed position with regard to the direction of the feed movement of the fabric (see Fig. 2), which must be varied according to the top projection p of the embroidery to be cut out. To allow of this variation, the tool carrier 39 is pivotally suspended on the vertical. pivot 48 in the holder 49 and can be fixed in any desired oblique position by means of the threaded bolt 50 provided with a nut, guided in an elongated slot of the holder 49. The holder 49 is provided with a guide-way and can be adjusted in the vertical direction on the guiding plate 52 by means of an adjusting screw 51 and befixed in the desired position of height by means of a clamping screw53. The holder 49 is provided with an elongated slot for the passage of the'clamping screw 53.

The guiding plate 52 has. on its back side a horizontal pivot 54, by means of which it is pivotally mounted on the stationary support 5 extending over the fabric feed table. Two screws 55, 55, which are guided in curved slots concentrically arranged around the pivot 54L give the possibility of fixing the guiding plate 52'also in the desired angular position on the support 5. On the front side of the guiding plate 52 is adapted the index 56 which coeperates with a graduation provided on the support 5 and thus indicates the angular position of the tool carrier on the horizontal axis 54.

The described adjusting device allows the adjustment of the cutting edge of the cutting band 36 and the opposite upper edge of the counterpart 42 with regard to the fabric path n0 in the direction of the height by means of the screw 51 as well as in its angular position by means of the screws 55, 55. As the fabric isclamped on both sides of the cutting tool by the conveyer wheels 4:, l and the corresponding pressure belts 10, 11, it can be more or less stretched by the said device transversely to its feed direction, which is advantageous for obtaining a good cutting operation. If this transverse tension of the fabric should for'example be j be produced at the front side.

lessened at the rear '(right) end of the cutting edge of the tool 36 and raised at the front end thereof, the screws 55, 55 are slightly loosened and the whole tool carrier is somewhat turned around the pivot 5i in the clockwise direction. It results from this manipulation that the tool cutting edge comes on the front side of the machine at a higher level than on the rear side with regard to the periphery of the conveyer wheels 4c, so that the greater fabric tension will An advantage of this regulating device consists also in the fact that all the regulating members are situated above the fabric path n0, so that their manipulation may also be effected during the operation of the machine without it being necessary to remove the fabric from the cutting mechanism.

The cutting and guide roller 37 from which the cutting band is unwound during the cutting operation, is provided with a brake device, while the cutting band guide roller 38 is combined with a convenient driving ratchet device. The brake device is represented by Fig. 11 in section on a larger scale. Against the inner side face of the guide roller 37 is pressed by the spring 58 a brake disk 57 furnished with a lining of leather or the like. The spring '58 bears on the other hand against a plate 59 provided with pins 60, 60 fixed thereon and engaging into holes of the brake disk 57. The bolt or pivot 61 upon which rotates the roller 87 is threaded at both its ends. At the front end the threaded pivot part is flattened on two opposite sides and the plate 59 is slid thereon so as to be prevented from being rotated. A nut 62 screwed upon said pivot part allows of the regulation of the tension of the spring 58, so that the braking action can be varied at will; The braking device has the object to maintain the cutting band under permanent tension during the unwinding as the cutting operation takes place and to cause it to intimately adapt itself to the curved guide face of the guide rail 40. This prevents as well as possible the removal of the cutting band from the guide rail 40 and the variation of its distance from the upper edge of the counterpart a2, which is of great advantage for a good cutting effect.

As'the cutting band becomes narrower by sharpening, it must beso arranged that it can be adjusted upon its guide rail 40 with regard to the counterpart 42. This adjustment may for example be effected by means of the adjusting screws 63 (Fig. 10) arranged in any convenient number as regulable stops behind the back face of the cutting band at the cutting place.

In order that the cutting band always runs off from the roller 37 exactly at the same distance from the counterpart 42, the roller 37 is laterally provided with a flange serving as a guide for the back face of the cutting band and is'furthermore arranged so as to be capable of being axially displaced with regard to the tool carrier itself. This axial displacement may for example be obtained by the fact that the roller pivot 61 is screwed by its rear threaded end portion into the tool carrier 39, whereon it is secured by means of a counter-nut. In the same way the other guide roller 38 for the cutting band may also be arranged so as to be axially adjustable.

The drive device for the guide roller, 38 consists of a worm wheel 6 l- (Fig. 10) connected with the guide roller 38 and a worm 65 engaging with said worm wheel and carrying a ratchet wheel 66. The latter receives an intermittent rotation by means of a pawl lever 68 having a pawl 67 and which is arranged to be oscillated to and fro from the main shaft of the machine. To this end, the main shaft 2 is provided 011 one side of the machine with a small crank arm 69 (Fig. 5), the active length of which may be varied by means of a set screw 70 passing through a slot in said crank arm. To this crank arm is linked the link rod 71 connected by its upper end to the arm 7 2 (see also Fig. 3) fixed on the shaft 73. The shaft 73 is rotatably mounted in a tube 74: extending transversely over the fabric feed table, which is supported on the one hand by the upright 75 attached to the machine frame and is rigidly held on the'other hand by the forked support 5. The shaft 73 passes through the support 5 and carries at its projecting end an arm 76 (Fig. 1) connected by a short link 77 with the above described pawl lever 68 for the intermittent shifting of the cutting band. At'each revolution of the machine the described ratchet device has imparted to it a to-and-fro movement which successively carries the cutting band along through the cutting place according to the wear of its cutting edge, whereby the speed of this intermittent cutting band feeding movement can be regulated as required according to the proper wear of the cutting edge. The prolonged worm shaft is also provided with a manually operatable crank 78 (Fig. 9), by

means of which the guide roller 38 can alsobe rotated by hand for manually drawing along the cutting band when required.

The connection of the pawl lever 68 with the actuating arm 76 through the medium" of the link 77 is preferably performed with the aid of ball joinings, in order that the lat eral adjustability of the tool carrier around the pivot a8 may not be interfered with. Furthermore, the connection of the pawl lever 68 with the link 77 shall be easily releasable, in order that the whole cutting mechanism constituting in some respects one single body can easily be removed from the machine after the disengagement of the screw 53, which is. of greatadvantage for the insertion of a new cutting hand.

.To obtain a good effect from thecutting mechanism, it is necessary that the fabric enters the cutting mechanism smoothly and without any folds. To'this end there is arranged laterally close to the cutting tool on that side from which the fabric approaches the obliquely directed cutting band, a spring acted tensioning lever 7 9 (Figs; 1, 2, 6 and 7) which carries at its front end a pivotally mounted tensioning foot 80 with a concave lower face incurved according to the periphery of the conveyer wheels. The tensioning lever-7 9 is pivoted on a projection of the roller lever 6 around a pivot 81 and is influenced bya traction spring 82, the action of which may be varied by means of a manually operatable lock lever nism, which is very important for the proper cutting operation. Owing to the pivotal arrangement of the tensioning foot 80 on the lever 79, said foot is capable of easily adjusting itself to any unevenness of the fabric.

In order to allow of. the cutting out of embroideries of different height with one and the same described cutting mechanism,

the oblique position of the cutting tool with regard to the direction of the fabric feed movement can bevaried by adjustment upon a vertical pivot, as described above. In this case, it is however also necessary to vary the relative distance of the conveying wheels 4, l as well as that of the pressure belts 10, 11. The lateral-displacement of the conveying wheel 4t can be efl ected for example by means of the screw spindle 85 movably screwed into said wheel, provided with a hand wheel 86 and held in the wheel 4: so as to be rotatable; but not axially displaceable therein, the wheel 4 being permanently fixed on the shaft 2, while the wheel 4 can be loosened and fastened thereon by .means of a setscrew 87 having a hand wheel for its operation. In order to allow of the lateral. displacement of the pressure belt 10, the roller lever 6 is so arrangedon the axis 7 that it can be axially displaced thereon by means? of a screw spindle'88 having a hand wheel (Fig. 2), whereby-the screw spindle 88 is secured against axial movement by a coupling.

the roller lever 6, it results that when the pressure belt 10 is laterally displaced, the tensioning foot 80 will also simultaneously partake of this lateral displacement. 'The roller lever 6 with the pressure belt 11 is not displaceable in the lateral direction.

In order thatv the embroidered fabric to be cut out shall always enter with the embroidered edge at the same part of the cutting tool, there is arranged in front of the conveying device a fabric guiding bar 90 7 (Figs. 1 and 2) fixed on a vertically adjustable slide 91 guided in a slide-way of the forked support 5. This slide 91 can be adjustedlin the direction of the height by means'of the adjusting screw 92, while a set screw 93 allows of its fixation in the desired position. The distance of the guiding bar from the table 15 can be regulated at such adegree that it allows only the unembroidered fabric to pass under the bar, while the elevated embroidered :edge comes into contact with the bar and is guided by it during the feeding movement of the fabric. On both sides of the fabric guiding bar 90 are placed the rotary rollers 94, and 94, 95 mounted on rocking levers. lhe rollers, owing to their own weight, are designed to smooth the fabric before its entrance into so that the opposite rollers have a somewhat divergent position and tend to laterally spread out the fabric to some extent. On the rear end of themachme is an ranged in line with the fabric feeding table a rotary guideroller 96 extending over the whole breadth of the machine and furnished with a rough surface of plush or the like. This roller is actuated by means of a cord pulley 97 (Figs. land 5) fixed on the main shaft 2 and its object isto carry the fabric away from the cutting mechanism by frictional engagement therewith, so as to prevent any gathering of the fabric in the conveying device. Below the guide roller 96 is arranged the folder 97 consist ing of a folding board extending over the whole breadth of the machine and carried by a rocking -shaft98. The eflect' of this folder is to fold the fabric 16 at the rear end of the machine in uniform layers as represented in Fig. 1. The folder is oscillated to and fro by means of a crank arm 99 fixed on the rocking shaft 98 and connected by a link rod 100 to a cord pulley 101. The

' cord pulley 101 is supported on the upright 75 and is actuated from the cord pulley 102 '(Fig. 4) connectedto the step pulley 21.

In order thatbehind the cutting mechanisin the fabric may not be held back or clamped and thus torn by the members of the conveying device, that is the pressure belts 10, 11 with their guide rollers 9, 9 and the conveying wheels 41, 4, there may be provided-special protecting attachments for each of the pressure belts 10, 11 and the conveying wheels 4:, i, represented in Figs. 6, 7 .and'VS; as these protecting attachments are the same for each pressure belt andconveying wheel, it sufiices to describe only a single set thereof, for example that for the parts 10 and 4. Upon the pressure belt 10 slides a plow-share-like shoe 103 (Figs. 6 and 7) of sheet metahpivotally hinged on the lever 6 and is tapered toward the front end (Fig. 7), while it carries at its larger rear end two lateral jaws (Fig. 6) taking over the lateral edges of the pressure belt 10., This protecting shoe prevents the pointededges of the cut out fabric from being clamped between the pressure belt 10 and the periphery of the guide roller 9, owing to the fact that the lateral jaws of the shoe 103 positively press and direct the fabric downward away from the guide roller. Further, in order that the cut out fabric may not be arrested between the periphery of the conveyer wheel 4, 4 and the corresponding edge "of the opening of the table 15, each of said conveyer wheels is provided at its periphery with a circular groove 104, .into whichengages the middle finger of a three-branch fork 1-05 of sheet metal (Fig. 8), the side fingers of which take over the lateral edges of the conveyer wheel 4. This protecting fork 105 rests on the fabric feeding table 15 and is pivoted on the pivot 106 the lateral direction in order that it may follow the conveyer wheel when this is laterally displaced. By the fingers of the protecting fork which slide on the conveyer wheel 41, thefabric is positively detached or removed from the latter and thereby prevented from being clamped 111.

The third conveyer wheel 1 (Fig. 5) assists in parallelly guiding the fab-ricover its whole breadth through the machine, particularly in the case where fabric pieces of great breadth are to becut. Above this auxiliary conveyor wheel there is no pressure belt, .but the contact of the fabric with said wheel is insured by the rotary roller 10? furnished with a covering of rubber or the like. This roller is carried by a lever 108, which is easily rotatably mounted on the tube 74. It rests by its own weight upon the wheel'i to carry the fabric passing between them by .f-rictionalengagement through the machine. 1 i The mode of operation of the described machine may be understood without further explanation and'the :attendancelto the machine is limited solely to the application of the embroidered edge of the fabric longitudinally against the guide bar 90. It is further important to exactly adjust the width of the slot between the cutting band 36 and the counterpart 4:2 in order that the embroidered edge of the embroidery pattern may be properly cut out.

hat I claim is:

1. In a cutting-machine for embroidery, a cutting mechanism, two rotary conveyer wheels, one at each side of said cutting mechanism, provided with a rough surface at their periphery and two corresponding tensioned roller-guided, flexible tractive members arranged above said conveyer wheels and pressed down toward the periphery of the latter so as to hold the fabric on both sides for conveniently feeding it a v3. In a cutting machine for embroidery, a

cutting mechanism comprising a cutter and an adjacent counterpart to form between them a slot for the passage of the non-embroidered fabric portion, the cutter consisting of a flexible cutting band fixed on two rollers carried by an adjustable, fixed tool carrier and having controlling means for drawing it successively through the cutting place according to the wear of its cutting edge, substantially as described.

' 4. In a cutting machine for embroidery, a cutting mechanism comprising a cutter having a concavely curved cutting edge and an adjacent counterpart having a convexly curved operative edge to form a curved slot between said edges for the passage of the non-embroidered fabric portion, substantially as described.

5. In a cutting machine for embroidery, a cutting mechanism comprising a tensioned flexible cutting band and a convex guide piece over which passes said cutting band so as to cause its cutting edge to take a concavely curved form, substantially as described.

6. In a cutting machine for embroidery, a cutting mechanism comprising a tensioned flexible cutting band, two rollers on which said cutting band is fixed, an automatic ratchet device for actuating one of said rollers and a brake device for the other roller so as to obtain an intermittent displacement of the cutting band in tensioned position, substantially as described.

7. In a cutting machine for embroidery,.a cutting mechanism comprising a'tensioned flexible cutting band, two rollers on which said cutting band is fixed, an automatic ratchet device for actuating one of said rollers and a brake device for the other roller so as to obtain an intermittent displacement of the cutting band in tensioned position, means being provided to allow also of a manual operation of the first cutting band roller, substantially as described.

8. In a cutting machine for embroidery, a cutting mechanism comprising a tensioned flexible cutting band, rollers for guiding said cutting band and stationary,- curved guiding pieces at both ends of the. cutting place for directing the cutting band upward apart from the fabric path, substantially as described.

9. In a cutting machine for embroidery, a cutting mechanism comprising a tensioned flexiblecutting band having its cutting part obliquely directed downward at the cutting place and rollers for guiding said cutting band, substantially as described. 7

10. In a cutting machine for embroidery, a'cutting mechanism comprising a tensioned flexible cutting band having its cutting part obliquely directed downward at the cutting place, rollers for guiding said cutting band and heli'cally curved guiding pieces at both ends of the cutting place for guiding the cuttingiband from its inclined position to its normal rollerguiding, substantially as described.

11. In a cutting machine for embroidery,

band and a carrier for carrying said rollers,

one of which is axially displaceable on said carrier for its adjustment according to the breadth of the cutting band, substantially as described.

12. In a cutting machinerfor embroidery, a cutting mechanism having a stationary support, a cutting tool and a tool carrier, said tool carrier being vertically adjustable on said support and having its adjusting means situated above the fabric path in an easily accessible position, substantially as described.

13. In a cutting machinefor embroidery, a cutting mechanism having' astationary support, a cutting tool and atool carrier, said tool carrier being vertically adjustable on said support and having its adjusting means situated above the fabric path, said tool carrier being also angularly adjustable around a horizontal axis and means being provided above the fabric path for allowing of this angular adjustment, substantially as described. r

1a. In a-cutting machine for embroidery,

a cutting mechanism having a cutting tool and a counterpart placed apart from said tool so as to leave free a slot for the passage of the non-embroidered fabric portion, said counterpart being movably supported and provided with regulating means. situate above the fabric path for acting upon said counterpart so as to vary its distance from the cutting tool and thereby the width of said slot, substantially as described.

15. In a cutting machine for embroidery, a cutting mechanism comprising a cutting tool and a cooperating counterpart, a conveyer device for feeding the fabric to said cutting mechanism, and a spring acted tensioning member on the inlet side of the cutting mechanism, arrangedso as to press down the fabric over the said counterpart of the cutting mechanism and to thus produce a transverse stretching of the fabric, substantially as described.

16. In a cutting machine for embroidery, a cutting mechanism comprising a cutting tool and a cooperating counterpart, a conveyer device for feeding the fabric to said cutting mechanism, and a spring acted tensioning member on the inlet side of the cutting mechanism, provided with a movably hinged tensioning pad and arranged so as to press down the'fabric over the said counterpart-of the cutting mechanism and to thus produce a transverse stretching of the fabric, substantially as described.

17. In a cutting machine for embroidery, a cutting mechanism, a conveyer device for feeding the fabric to said cutting mechanism, a guide bar for guiding the fabric along its embroidery edge and smoothing rollers diver-gently arranged on both sides of said guide bar for effectively smoothing the fabric before its entrance into the con veyer device, substantially as described.

18. In a cutting machine for embroidery, a cutting mechanism, a conveyer device for feeding the fabric to said cutting mechanism and an oscillating folding board arranged at the rear end of the machine to fold the fabric by superposed layers, substantially as described.

19. In a cutting machine for embroidery, a cutting mechanism, a conveyer mechanism for feeding the fabric to said cutting mechanism, a main drive for said mechanisms, a clutch for said main drive, a foot board extending over the whole breadth of the machine for disengaging said clutch from any point of the same and a brake device operable by said foot board to rapidly arrest the main drive, substantially as described.

20. In a cutting machine for embroidery, a cutting mechanism, two rotary conveyer wheels, one at each side of said cutting mechanism, provided with a rough surface at their periphery and two corresponding tensioned, roller-guided, flexible pressure belts arranged above said conveyer wheels and pressed down toward the periphery of the latter so as to clamp the fabric on both sides, and a guard shoe for said pressure belts having lateral jaws so arranged as to direct the fabric down from the pressure belts and to prevent it from being clamped between the belts and their guide-rollers, substantially as described.

21. In a cutting machine for embroidery, a cutting mechanism, two rotary conveyer wheels, one at each side of said cutting mechanism, provided with a rough surface at their periphery and two corresponding tensioned, roller-guided, flexible tractive members arranged above said conveyer wheels and pressed down toward the periphery of the latter so as to clamp the fabric on both sides for conveniently feeding it to the cutting mechanism when the conveyer wheels rotate, said conveyer wheels being provided with a groove and combined with a guard member arranged to engage with said groove and to detach the fabric from the conveyer wheels during the operation of the machine, substantially as described.

22. In a cutting machine for embroidery, a cutting mechanism, two rotary conveyer wheels, one at each side of said cutting mechanism, provided with a rough surface at their periphery and two corresponding tensioned, roller-guided, flexible tractive members arranged above said conveyer wheels and pressed down toward the periphery of the latter so as to clamp the fabric on both sides for conveniently feeding it to the cutting mechanism when the conveyer wheels rotate, an auxiliary conveyer wheel with a corresponding pressure roller being provided for subsidiarily and correctly feed ing the fabric, substantially as described.

In witness whereof I have hereunto signed my name this 28th day of January 1915, in the presence of two subscribing witnesses.

KARL KELLER.

Witnesses FRANK TIMMKE, EMIL MEILE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

